2019RAA....19..106C

Query : 2019RAA....19..106C

2019RAA....19..106C - Research in Astron. and astroph., 19, 106-106 (2019/August-0)

Mass transfer and possible third-body effect on the period variations of the near-contact binary CN And.

CAI J.-T., YU Y.-X., HU K. and XIANG F.-Y.

Abstract (from CDS):

We present a period analysis of the near-contact binary CN And using all available times of light minima. It is revealed that the orbital period exhibits a long-term decrease as well as a small-amplitude cyclic oscillation. This result suggests that the secular period decrease at the rate of dP/dt = -1.4017 x 10–7 d yr–1 is caused by a combination of mass transfer and angular momentum loss due to magnetic braking. The periodic variation with an amplitude of A = 0.0036 d and a period of Pmod = 28.3542 yr should be rooted in the light-time effect of a third body, rather than cyclic magnetic activity.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close - stars: binaries: eclipsing - stars: individual: CN And

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* CN And SB* 00 20 30.5419967784 +40 13 33.806776620   10.24 9.706 9.423 9.145 F5V 132 0
2 V* RT Scl SB* 00 36 28.0901607240 -25 40 22.933477128   10.63 10.31     A5N+F3 68 0
3 V* DO Cas SB* 02 41 24.1562936472 +60 33 11.767871376   8.80 8.54     A2II 111 0
4 V* GR Tau SB* 04 01 03.2344925232 +20 24 50.248533276   10.80 10.36 10.43   A5V 84 0
5 V* HL Aur EB* 06 19 13.0405702536 +49 42 06.920990208   11.59 11.08     F4 60 0
6 V* AX Vir SB* 13 27 44.7841748136 +03 52 26.637584808   10.50 10.34     ~ 59 0
7 V* FT Lup SB* 14 59 52.6999478616 -42 58 59.102940900   10.27 9.82     F0V 67 0
8 V* V1010 Oph SB* 16 49 27.6690355320 -15 40 04.682052912   6.40 6.19     A3V 158 0
9 V* TT Her SB* 16 54 22.9664980392 +16 50 13.123555584   9.97 9.68     A2V 108 0
10 V* V361 Lyr EB* 19 02 28.1238851400 +46 58 57.624350772   14.360   13.650   F9V(N) 61 0
11 V* V388 Cyg SB* 20 29 12.8831999088 +31 23 11.995096848   9.82 9.59     A0 60 0
12 V* BO Peg EB* 21 31 17.8728099024 +11 56 46.498943040   11.9 12.22     A7IV-V 50 0
13 V* BL And EB* 23 11 24.2581546584 +51 52 31.374661404   11.47 11.10     A8 66 0

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